from bs4 import BeautifulSoup

# 示例HTML内容
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title"><b>The Dormouse's story</b></p>

<p class="story">Once upon a time there were three little sisters; and their names were
<a href="http://example.com/elsie" class="sister" id="link1">Elsie</a>,
<a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.</p>

<p class="story">...</p>
"""

# 创建BeautifulSoup对象，指定使用'html.parser'作为解析器
soup = BeautifulSoup(html_doc, 'html.parser')
# 打印整个文档的美化版本
print(soup.prettify())
# 查找所有<a>标签并打印它们的href属性和文本内容
for link in soup.find_all('a'):
    print(link.get('href'), link.text)
